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Etude de nouveaux oxyhydroxydes de cobalt pouvant être utilisés comme additif conducteur électronique ajoutés à l'hydroxyde de nickel dans les accumulateurs nickel/cadmium et nickel/métal hydrure

Abstract : Nickel hydroxide is the active material of the positive electrode of alkaline batteries. This material exhibits very good electrochemical properties but its electronic conductivity is very low. To optimize the electrode properties, all battery manufacturers use cobalt which are claimed to be under the CoOOH from.
A general study of cobalt oxyhydroxides has been undertaken. These materials have been obtained by precipitation and by "chimie douce" reactions. The structure of these cobalt oxyhydroxides has been caracterized by Rietveld refinement of the X-ray diffraction patterns. These materials have been characterized from the electronic properties point of view. These cobalt oxyhydroxides have been successfully used as electronic conductor in the nickel hydroxide electrode
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https://tel.archives-ouvertes.fr/tel-00133167
Contributor : Stéphane Toulin <>
Submitted on : Friday, February 23, 2007 - 5:57:49 PM
Last modification on : Thursday, January 11, 2018 - 6:15:07 AM
Long-term archiving on: : Friday, November 25, 2016 - 3:02:24 PM

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  • HAL Id : tel-00133167, version 1

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Maurice Butel. Etude de nouveaux oxyhydroxydes de cobalt pouvant être utilisés comme additif conducteur électronique ajoutés à l'hydroxyde de nickel dans les accumulateurs nickel/cadmium et nickel/métal hydrure. Matériaux. Université Sciences et Technologies - Bordeaux I, 1998. Français. ⟨tel-00133167⟩

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